
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Large Skipper | 30 | . | . | . | . | . | . | . | 3 | 8 | 6 | 5 | 3 | 3 | . | . | . | . | . | . | . | ||||||
| Dingy Skipper | 8 | . | . | . | . | 1 | 5 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Brimstone | 15 | 1 | . | . | 4 | . | . | . | . | . | . | . | . | . | . | . | 1 | 3 | 2 | 1 | 1 | ||||||
| Large White | 12 | . | . | . | 1 | 2 | 2 | . | . | . | . | . | 2 | 1 | 1 | . | . | 1 | . | . | 1 | ||||||
| Small White | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | 1 | . | ||||||
| Green-veined White | 85 | . | 1 | 1 | 1 | 7 | 10 | 9 | . | 1 | 2 | 1 | 1 | 9 | 21 | 10 | . | 3 | . | 1 | . | ||||||
| Orange Tip | 14 | . | . | 2 | 1 | 5 | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Northern Brown Argus | NI | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Common Blue | 2 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | . | . | . | 1 | . | . | ||||||
| Holly Blue | NI | . | 1 | 1 | 1 | . | 2 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Duke of Burgundy Fritillary | 2 | . | . | . | 1 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Red Admiral | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | . | ||||||
| Painted Lady | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||
| Small Tortoiseshell | 4 | 1 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | ||||||
| Peacock | 62 | 7 | 5 | 4 | 6 | 3 | 1 | . | . | . | . | . | . | . | 10 | 6 | 3 | 6 | . | . | . | ||||||
| Small Pearl-bordered Fritillary | NI | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | . | . | . | . | . | . | ||||||
| Pearl-bordered Fritillary | 160 | . | . | . | 1 | 36 | 41 | 41 | 10 | 5 | . | . | . | . | . | . | . | . | . | . | . | ||||||
| High Brown Fritillary | 29 | . | . | . | . | . | . | . | . | 1 | 8 | 7 | 7 | 4 | . | 1 | 1 | . | . | . | . | ||||||
| Wall Brown | NI | . | . | . | . | . | . | 3 | . | . | . | . | . | . | . | . | . | 1 | . | . | . | ||||||
| Grayling | 2 | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | . | . | . | . | ||||||
| Meadow Brown | 291 | . | . | . | . | . | . | . | 1 | 6 | 79 | 60 | 69 | 42 | 16 | 7 | 5 | 4 | 1 | . | . | ||||||